<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>上传文件</title>
</head>
<body>
<form method="post" action="/upload.do" enctype="multipart/form-data">
    <input type="text" value="admin" placeholder="请输入用户名"><br>
    <input type="file" value="filename"><br><br>
    <input type="submit" value="上传">
</form>
</body>
</html>